For the average user, the moral is simple:
One mistake, and you short the clock line. Do it right, and the BIOS beeps three times. You reboot, press F1, and the "Enter Password" field is gone. Even if you clear the Supervisor password on a T470, you do not get full control. lenovo t470 bios password reset
Lenovo’s region is separate from the BIOS. If the previous owner enrolled the laptop in a corporate Computrace (Absolute Software) subscription, clearing the BIOS password won't kill the LoJack. Once the laptop touches the internet, it phones home to a geolocation server. For the average user, the moral is simple:
And if you see a T470 with a "Password not set" screen? That machine has a story. It has been freed. For the average user